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Finding the Fourth Proportional to 100,893.17, 151,338.38 and 34,379.66

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Solution

The fourth proportional to 100,893.17, 151,338.38 and 34,379.66 is: 51,569.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,893.17 : 151,338.38 = 34,379.66 : x
  2. Step 2: Convert to fraction form
    100,893.17/151,338.38 = 34,379.66/x
  3. Step 3: Cross multiply
    100,893.17x = 151,338.38 × 34,379.66
  4. Step 4: Simplify right side
    100,893.17x = 5,202,961,120.76
  5. Step 5: Solve for x
    x = 5,202,961,120.76/100,893.17
  6. Step 6: Final answer
    x = 51,569.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.